.audio {
 width: 100%;
 }
 .modal-footer {
 text-align: center;
 }
 .form-audio {
 margin-left: 350px;
 }
 .page-header {
 text-align: center;
 }
input[type="text"] {
    width: 98%;
}
textarea {
    width: 98%;
    height: 300px;
}
input[type="password"] {
    width: 100%;
}
